October 2014

November 20, 2012

Supporting USS on DB2 for z/OS

A reader recently told me
about installing DB2 for z/OS and setting up UNIX Systems Services (USS)
components. He wanted to understand more about the archictectural differences
between DB2 on USS and DB2 for z/OS.

Of course when working with DB2 installs, you should review the DB2
Installation guide, but when working with distributed applications like USS
components, you need to understand DB2 distributed functions (DDF). While "DB2
9 for z/OS: Distributed Functions" obviously doesn't cover the latest
in DB2, it does provide a good introduction to DDF.

The reader who contacted me was hoping to find a diagram showing the DB2
for z/OS components that run on USS. Unfortunately, I couldn't turn up
anything. As a visual person myself, I think a diagram showing how Java
applications running on USS communicate with DB2 for z/OS would be great.
However, I did find the "DB2 9 for z/OS Application Programming Guide
and Reference for Java." This manual explains how IBM Data Server
Driver for JDBC and SQLJ are used to make the connection from your application
to DB2 for z/OS.

Have you found other resources that have helped you understand the DB2
for z/OS architecture in supporting applications that run on USS? Please share
your tips in Comments.

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